- Created by Martin Skorupski on Feb 10, 2021
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Objective
In order to process O-RU NetConf alarm-notif events in a common way on SMO level, the OAM controller converts such NetConf Notification into a VES:fault message..
Sequence Diagram
Implementation
It is assumed that the existing generic NetConf-Notification to ves:notification service could be enhanced for a specific fault notification implementation.
Mapping to VES fault fields
The following mapping table bases on the capabilities of OpenDaylight version Aluminum and maps them to the VES 7.2 fields for domain 'fault'.
(under discussion)
A couple of VES fields needs to be filled with values from a an Ietf:hardare/compoenent which does not have the leaf "parent". I more than one competent would not have the leaf "parent" then the first component should be used for such fields (e.g. manufacture name).
VES:commonEventHeader
implementation of OpenDaylight Aluminium (link)
domain
Static text "fault"
eventId
Value of 'nt:network-topology/nt:topology/nt:node/nt:node-id'.
eventName
Value of 'nt:network-topology/nt:topology/nt:node/nt:node-id'.
eventType
Static text: "O-RAN-RU-Fault"
internalHeaderFields
not mapped
lastEpochMicrosec
TimeStamp represented by <eventTime> field in NetConf notification header in unix time format - as microseconds elapsed since 1 Jan 1970 not including leap seconds.
nfcNamingCode
always ""
nfNamingCode
always ""
nfVendorName
The value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/mfg-name or empty string if not found.
Under discussion: how to identify the "root" component?
priority
Static text "Normal"
reportingEntityId
The OAM-Controller identifier with in the SMO - e.g. the fully qualified domain name or IP-Address.
If a VES:pnfRegistration event is fetched from the Message-Router, then this VES:pnfRegistration event must not processed and must be ignored, avoiding double registration by NetConf Callhome and VES:pnfRegistration
reportingEntityName
as configured by helm charts for the OpenDaylight cluster name
sequence
As per NetConf notification increasing sequence number as unsigned integer 32 bits. The value is reused in the eventId field.
sourceId
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/uuid or 'nt:network-topology/nt:topology/nt:node/nt:node-id' if ietf component not found.
sourceName
Value of 'nt:network-topology/nt:topology/nt:node/nt:node-id'.
startEpochMicrosec
Current OAM-Controller Node timestamp in unix time format - as microseconds elapsed since 1 Jan 1970 not including leap seconds.
Q: is it possbile to read a timestemp from the NetConf Callhome message?
timeZoneOffset
Static text: "+00:00" - Please note, the time format in all related OAM controller times is in UTC time format - a mapping to other time formats happens in presentation layer only (e.g. on user settings, bowser settings, ...)
version
Static text: "4.1"
vesEventListenerVersion
Static text "7.2"
VES:pnfRegistrationFields
If an ieft-hardware component is not identified for the mapping into VES:pnfRegistrationFields or a and optional leaf is not provided, then the VES:pnfRegistrationFields should be part of the message with its default value (e.g. empty string "")
The ietf-hardware component must not have the 'parent' leaf.
additionalFields
not mapped
Note: a mapping of NetConf ports, and NetConf credentials are not required.
In case a fully qualified domain name is used by the O-RU, then the oamFqdn should be added here, The fields 'ves:oamV4IpAddress' and 'oamV6IpAddress' would be not in such ves.pnfRegistration message. Note: such use case is not expected for 2021.
lastServiceDate
Value of ietf-hardware (RFC8348) /hardware/last-change or "1970-01-01T00:00:00z" if not found.
macAddress
not mapped
manufactureDate
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/mfg-date or empty string if not found.
modelNumber
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/model-name or empty string if not found.
oamV4IpAddress
Value of 'nt:network-topology/nt:topology/nt:node/nt:host', IF in IPv4 format otherwise an empty string
oamV6IpAddress
Value of 'nt:network-topology/nt:topology/nt:node/nt:host', IF in IPv6 format. otherwise an empty string
pnfRegistrationFieldsVersion
Static text: "2.0"
serialNumber
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/serial-num or empty string if not found.
softwareVersion
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/software-rev or empty string if not found.
unitFamily
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/alias or empty string if not found.
unitType
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/class or empty string if not found.
vendorName
Value of ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/mfg-name or empty string if not found.
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